diff options
Diffstat (limited to 'libusbx-1.0.18/libusb/os/windows_common.h')
| -rw-r--r-- | libusbx-1.0.18/libusb/os/windows_common.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/libusbx-1.0.18/libusb/os/windows_common.h b/libusbx-1.0.18/libusb/os/windows_common.h new file mode 100644 index 0000000..1da72bd --- /dev/null +++ b/libusbx-1.0.18/libusb/os/windows_common.h @@ -0,0 +1,108 @@ +/* + * Windows backend common header for libusbx 1.0 + * + * This file brings together header code common between + * the desktop Windows and Windows CE backends. + * Copyright © 2012-2013 RealVNC Ltd. + * Copyright © 2009-2012 Pete Batard <pete@akeo.ie> + * With contributions from Michael Plante, Orin Eman et al. + * Parts of this code adapted from libusb-win32-v1 by Stephan Meyer + * Major code testing contribution by Xiaofan Chen + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#pragma once + +// Windows API default is uppercase - ugh! +#if !defined(bool) +#define bool BOOL +#endif +#if !defined(true) +#define true TRUE +#endif +#if !defined(false) +#define false FALSE +#endif + +#define safe_free(p) do {if (p != NULL) {free((void*)p); p = NULL;}} while(0) +#define safe_closehandle(h) do {if (h != INVALID_HANDLE_VALUE) {CloseHandle(h); h = INVALID_HANDLE_VALUE;}} while(0) +#define safe_min(a, b) min((size_t)(a), (size_t)(b)) +#define safe_strcp(dst, dst_max, src, count) do {memcpy(dst, src, safe_min(count, dst_max)); \ + ((char*)dst)[safe_min(count, dst_max)-1] = 0;} while(0) +#define safe_strcpy(dst, dst_max, src) safe_strcp(dst, dst_max, src, safe_strlen(src)+1) +#define safe_strncat(dst, dst_max, src, count) strncat(dst, src, safe_min(count, dst_max - safe_strlen(dst) - 1)) +#define safe_strcat(dst, dst_max, src) safe_strncat(dst, dst_max, src, safe_strlen(src)+1) +#define safe_strcmp(str1, str2) strcmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2)) +#define safe_stricmp(str1, str2) _stricmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2)) +#define safe_strncmp(str1, str2, count) strncmp(((str1==NULL)?"<NULL>":str1), ((str2==NULL)?"<NULL>":str2), count) +#define safe_strlen(str) ((str==NULL)?0:strlen(str)) +#define safe_sprintf(dst, count, ...) do {_snprintf(dst, count, __VA_ARGS__); (dst)[(count)-1] = 0; } while(0) +#define safe_stprintf _sntprintf +#define safe_tcslen(str) ((str==NULL)?0:_tcslen(str)) +#define safe_unref_device(dev) do {if (dev != NULL) {libusb_unref_device(dev); dev = NULL;}} while(0) +#define wchar_to_utf8_ms(wstr, str, strlen) WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, strlen, NULL, NULL) +#ifndef ARRAYSIZE +#define ARRAYSIZE(A) (sizeof(A)/sizeof((A)[0])) +#endif + +#define ERR_BUFFER_SIZE 256 +#define TIMER_REQUEST_RETRY_MS 100 +#define MAX_TIMER_SEMAPHORES 128 + + +/* + * API macros - from libusb-win32 1.x + */ +#define DLL_DECLARE_PREFIXNAME(api, ret, prefixname, name, args) \ + typedef ret (api * __dll_##name##_t)args; \ + static __dll_##name##_t prefixname = NULL + +#ifndef _WIN32_WCE +#define DLL_STRINGIFY(dll) #dll +#define DLL_GET_MODULE_HANDLE(dll) GetModuleHandleA(DLL_STRINGIFY(dll)) +#define DLL_LOAD_LIBRARY(dll) LoadLibraryA(DLL_STRINGIFY(dll)) +#else +#define DLL_STRINGIFY(dll) L#dll +#define DLL_GET_MODULE_HANDLE(dll) GetModuleHandle(DLL_STRINGIFY(dll)) +#define DLL_LOAD_LIBRARY(dll) LoadLibrary(DLL_STRINGIFY(dll)) +#endif + +#define DLL_LOAD_PREFIXNAME(dll, prefixname, name, ret_on_failure) \ + do { \ + HMODULE h = DLL_GET_MODULE_HANDLE(dll); \ + if (!h) \ + h = DLL_LOAD_LIBRARY(dll); \ + if (!h) { \ + if (ret_on_failure) { return LIBUSB_ERROR_NOT_FOUND; } \ + else { break; } \ + } \ + prefixname = (__dll_##name##_t)GetProcAddress(h, \ + DLL_STRINGIFY(name)); \ + if (prefixname) break; \ + prefixname = (__dll_##name##_t)GetProcAddress(h, \ + DLL_STRINGIFY(name) DLL_STRINGIFY(A)); \ + if (prefixname) break; \ + prefixname = (__dll_##name##_t)GetProcAddress(h, \ + DLL_STRINGIFY(name) DLL_STRINGIFY(W)); \ + if (prefixname) break; \ + if(ret_on_failure) \ + return LIBUSB_ERROR_NOT_FOUND; \ + } while(0) + +#define DLL_DECLARE(api, ret, name, args) DLL_DECLARE_PREFIXNAME(api, ret, name, name, args) +#define DLL_LOAD(dll, name, ret_on_failure) DLL_LOAD_PREFIXNAME(dll, name, name, ret_on_failure) +#define DLL_DECLARE_PREFIXED(api, ret, prefix, name, args) DLL_DECLARE_PREFIXNAME(api, ret, prefix##name, name, args) +#define DLL_LOAD_PREFIXED(dll, prefix, name, ret_on_failure) DLL_LOAD_PREFIXNAME(dll, prefix##name, name, ret_on_failure) |